WebSession.Deactivated
From Xojo Documentation
Event
WebSession.Deactivated(visible As Boolean)
New in 2020r1
Supported for all project types and targets.
New in 2020r1
Supported for all project types and targets.
The window in which the app is running has been minimized, has lost the focus or the tab in which the app is running is no longer frontmost.
Notes
If Visible is true, the page is still visible to the user. The ability to detect this is dependent upon the browser supporting this capability.